63959268279 has 4 divisors (see below), whose sum is σ = 85279024376. Its totient is φ = 42639512184.

The previous prime is 63959268277. The next prime is 63959268281. The reversal of 63959268279 is 97286295936.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (63959268277) and next prime (63959268281).

It is not a de Polignac number, because 63959268279 - 2¹ = 63959268277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63959268277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10659878044 + ... + 10659878049.

It is an arithmetic number, because the mean of its divisors is an integer number (21319756094).

Almost surely, 2^63959268279 is an apocalyptic number.

63959268279 is a deficient number, since it is larger than the sum of its proper divisors (21319756097).

63959268279 is a wasteful number, since it uses less digits than its factorization.

63959268279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21319756096.

The product of its digits is 88179840, while the sum is 66.

The spelling of 63959268279 in words is "sixty-three billion, nine hundred fifty-nine million, two hundred sixty-eight thousand, two hundred seventy-nine".